The Nathan Sports Proton Hydration Pak isn't your average gym bag. This cool companion keeps you hydrated and organized with a system that features a 2-liter hydration bladder and rapid-access straw that wraps from back to front, a zippered main pocket for small essentials, mesh power pockets on each strap, an air-scoop with a ventilation channel, reflective detail, and an adjustable belt and straps.
About Nathan Sports
Nathan Sports is willing to go to the extreme to best serve its clientele - that's why team members head outside the Sharon Hill, Penn., office and into the Tetons, Grand Canyon, and countless other marathons. Nathan's best ideas are the fruits of these labors, the discoveries of what needs to be improved during training and competition, often under extreme conditions. Every race, ride, and run isn't just an athletic challenge - it's an experiment. The results are innovations like those in Nathan Sports' hydration system line, each one designed to make speedy access to fluids and fuel intuitive without interrupting a run or ride.